GST in one paragraph
GST is a value-added tax used in Australia, Canada, India, Singapore and New Zealand. It is charged on the net price and businesses remit the difference between GST collected and GST paid on inputs. Rates range from 5% (Canada) to 18% (India).
Standard rates
- Australia: 10%, low-value imported goods included since 2018
- Canada: 5% federal GST, plus provincial HST/PST in most provinces
- India: 18% standard slab, with 5% and 12% for some goods
- Singapore: 9% (raised from 8% in 2024)
- New Zealand: 15%
Registration thresholds
Australia requires registration above A$75,000 turnover; Singapore above S$1 million; New Zealand above NZ$60,000. Below those, you generally do not charge GST — and should not add it to your prices.
Extracting GST
Gross ÷ 1.1 gives the net price at 10%; the GST is the difference. Multiplying the gross by 0.1 gives the wrong figure — the same trap as VAT.
Frequently Asked Questions
Is GST the same as VAT?
Functionally yes; the names differ by country and the rules by jurisdiction.
Do I charge GST to overseas customers?
Usually not for exports, though low-value imported goods rules differ by country.
How do I extract GST from a total?
Divide by (1 + rate) — 110 ÷ 1.1 = 100 at 10%.
Assumptions & disclaimer
Results are estimates for planning. Fee schedules, tax brackets and deduction limits change; confirm current figures with the marketplace, the IRS or a qualified accountant before making decisions. Nothing here is financial, tax or legal advice.
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